Verbseoul.
하다 verb
환영하다hwanyeonghadato welcome

To say to welcome politely in the present tense, use 환영해요 (hwah-nyuhng-hae-yoh). Below is the full conjugation of 환영하다 across the three tenses and three everyday speech levels.

Conjugation table

TenseCasual (반말)Polite (요)Formal (합니다)
Present
환영해
hwah-nyuhng-hae
환영해요
hwah-nyuhng-hae-yoh
환영합니다
hwah-nyuhng-hahm-nee-dah
Past
환영했어
hwah-nyuhng-hae-ssuh
환영했어요
hwah-nyuhng-hae-ssuh-yoh
환영했습니다
hwah-nyuhng-hae-sseum-nee-dah
Future
환영할 거야
hwah-nyuhng-hahl- -guh-yah
환영할 거예요
hwah-nyuhng-hahl- -guh-yae-yoh
환영할 겁니다
hwah-nyuhng-hahl- -guhm-nee-dah

Other useful forms

Command Polite (세요)
환영하세요
hwah-nyuhng-hah-sae-yoh
Suggestion / Let's Polite (요)
환영해요
hwah-nyuhng-hae-yoh
Question Polite (요)
환영해요?
hwah-nyuhng-hae-yoh-?
Connective “and” — (고)
환영하고
hwah-nyuhng-hah-goh
Conditional “if” — (면)
환영하면
hwah-nyuhng-hah-myuhn
Noun form — (기)
환영함
hwah-nyuhng-hahm